Tire-chajstgustg tool



Nov. 4 .124"- F. SKATLJLE-MM TIRE CHANGING TOOL Filed April l1, 1923 mh IMME'U Mk1 n In Patented Norm il, 1924i.

lyltlytlld UNITED STATES PTfNT OF'FCH Application tiled ifi-pril fl, tritt.

To all whom t may concern Be it lrnovvn that l, Fianna'. dnarnitsnr,

a citizen of the United Stated residing Detroit, in the county of ilayne and @tate of lilichigan, have invented certain neiv and useful lmprovements in 'Fire-Changing Tools, of which the following is a specificam tion.

This invention relates to improvenients in, tire removing and placing tools The primary object of this invention is the provision of a tire rim contracting and pending tool, by means of which a tire rim may be most effectively handled during a V tire placing or removing operation.

A further object of this invention the provision of a novel rim tool for vehicle Wheels, of compact formation, and en'ibody-v ing means whereby the same may be held :in position with a rim contracted so that tire may be .readily removed or replaced with respect thereto.

A. further object of this inventic'zn is the provision of a novel type of rim engaging jaw for tire removing tecla Other objects and advantages of this invention Will be apparent during the course of the following detailed description.

In the accompanying drawings.) forming a part of this specificatiom and wherein similar reference characters designate corresponding parte throughout the several views.

Figure l is a plan view of the improved rim contracting or expanding tool, showing the application of the same upon a vehicle Wheel.

Figure 2 is a cross sectional vieny taken through the :improved rim tool, showing the same in position upon a rim, just prior to contraction of the latter for removing a tire therefrom.

Figure 3 is a cross sectional view7 showing details analogous to those illustrated in liigure f, with the improved tool parts in such position as to contract the rim of a vehicle' wheel that a tire may be easily removed therefrom.

Figure 4t across sectional view taken substantially on the line il- 4l of Figure 3.

ln the drawings, wherein for the purpose of illustration is shown but the preferred. ernbodiment of this inventiom the letter it. may generally designate the improved rim tool, adapted for direct operation upon the rim B of the vehicle wheel, so that the same may #Serial ItTo` @Stnde be contracted or erpanded for the mounitingn i or removal of the tire C,

Referring to the improved tire removing or replacing tool Ar, the same includes a substantially V-shaped member l0, which is preferably formed of a single length of material, bent intermediate its ends to provide relatively straight arms il and l2 in divergingrelation. Ait the bi ght portion l?) of the Vehaped member l0., an operation lever lil is pivotally connected, intermediate the annular retaining flanges 1G formed upon said bight portion i3; said opei'ating lever 13 being positioned for oscillation in a plane at right angles to the plane defined by the if-shaped member l0.

n link or arm member Q0 is preferably provided.) having the ends 5.3i and 22 thereof offset by an intermediate portion 13, as to lie in substantially parallel relation. The extreme end of the portion is bent, as at Elli, at right angles thereto, and is preferably ecrevv 'threaded for detachably receiving a nut 2G. This bent portion 2t is adapted for selective disposal for bearing purposes, Within any of a series of apertures 29 provided along the lever 11h "lhe arm 20 is thus pivotally connected to the lever la :intermediate its ends, and at a predetermined distance with respect to the pivotal mounting of the lever 1d upon 'the ttshaped member l0, Intermediate these ijiivotal connections of the lever lil, a series of relatively small openings are provided, longitudinally of thelever ld, which are adapted for receiving the inturned end 3l of a latch arm 32, which is pivoted at its opposite en d upon a cross bar 35, [intending transversely for rigid connection at its ends to the arms 'l1 and l2 of the vl-shaped member l0, and intermediate the ends of said bar.

lit their free ends, the arms l1 and lf2 of the lit-shaped member l0, and at the free end of the arms 20, novel rim engaging aufs di" are provided, which are similar in struc turc fllach of these jaws preferably includes a substr. .tially rectangular flat plate or base portion 3l, having at one end thereof a side or rim gripping flange 39 rigid therewith, ,dt its Yother end, the supporting plate Btl pivotally receives as by means of a pintle l0? a rim engaging member 415i, `vvhich forms the opposite side of the iaiv 3i', and may pivot-ally swing toward or away from the other side 39. it their free edges, the sides 39 and 41 are provided with the inturned rim hooks 42.

As to the placement of the jaws 37 upon the various arms of the improved rim-eX- panding and contracting tool A, jaws 87 are rigidly positioned upon the free end ci each of the arms 1l and l2, as by having the free ends of said arms riveted, weldedl or otherwise connected to the base plate 3S of said jaws, substantially at the central point. As to the other arm 20, the rim jaw `37 thereof is pivoted thereto in a novel manner. This pivot construction preferably cludes 'a vsocket plate 45, segmental in formation, which may he Welded or otherwise secured to the outside surface of the base or supporting plate 38 as to outstand therefrom. At its outstanding portion, this socket element 45 is provided with an elongated slot 47, into which the free end ot' the arm 20 may extend.. Transverse pins 4:9 and may be carried by this free end portion of the arm or link 20, respectively engaging the socket member 45, exteriorly and interiorly thereof, so that. the arm 20 and its jaw 37 may be relatively oscillatively moved.

In operation, to contract a rim, the device is arranged Within the rim so that the rigid sides 39 of the jaws 37 may engage the rim adjacent the ground or supporting door or surface upon which the rim is positioned, the hinged hooks 4], are then properly positioned to engage the opposite side of the rim. The clamps 37 carried by the V-shaped member 10 are disposed diametrically opposite to the clamp 37 upon the free end of the pivotal arm 20, and the latter clamp or jaw engages the rim adjacent the split. Then the operator engages the lever 14 to move the same toward the V-shaped frame or member l0, it is obvious that the arms of the improved rim tool A will be relatively moved with respect to each other, and as the yjaws 37 securely engage the rim it is obvious that the rim will be contracted, so that `a tire may be removed or placed with respect thereto. To hold the rim tool A in position with the rim contracted, the lock arm 32 is swung to engage the most suitably positioned aperture 30, and of course the lever 14 will be held in its position notwithstanding the normal expansive tendency ot the rim, as exerted upon the arms 'of the tire tool, so that thel operator is free to place or remove the tire with respect to the rim While in its contracted condition. After having placed a tire upon a rim, the latter is expanded by moving the operating lever i4 away from the V-shaped trame or member l0, and which, ot' course, moves thc clamps of' the member l() relatively away from the clamp 37 of the link arm 20. This` expanding operation so moves the jaws Il?, that the plates or supporting portiom ihk thereof directly engage the inner periphery of the rim to e'flect the exj'ianding operai ion. This permitted, notwithstanding tlul U-shapcd formation et said jaws R7, incident to the pivoting of the sides 41 of each of said jaws, as it is obvious that as the rim is expanded., the sides 4l of the jaws 37 will open to permit such operation.

Freni the foregoing description oi this invention, it is apparent that a rim mol has been provided, which is oit a very jpn'actical nature, embodying features which render the expansion or mntraction of the rim very easy, and the placing or removing oi the tire with respect thereto relatively Isimple. The cross member 35 serves a dual function` .in maintaining the frame arms ll and 1Q in proper relation, and also serves as a pivotal support for the latch member 32. It is also to be noted that the socket member 45 reinforces the jaw 37 upon which it is carried, which is of importance in that this jaw receives more strain than any of the other jaws carried by the .improved rim expanding and contracting tool.

Various changes in the shape, size and arrangement oi parts may be made to the iform of invention herein shown and described, without departing from the spirit ot this invention or the scope of this claim.

I claim:

A rim tool comprising a lever having an opening in one end, a bar pivotally connected with said lever in spaced relation to the opening in the end thereof, the lever between the said opening and bar being provided with latch receiving openings, a V- shaped meu'ibcr formed ot a bar passed through the opening in the end of said lever and bent to provide arms extending in diverging relation, a latch having one end provided with an c ve and the other end with a bill, a rod passing through said eye and having its ends secured to the arms of said il-shaped member intermediate the length thereof to brace the arms and pivotally and slidably mount the latch for n'iovclncut `into and out of position for passage of the bill thereof through a selected latch receiving opening ot said lever` and rim `engaging members carried by the outer ends of said bar and arms.

FRANK SKATULSKI. 

